Java Code Examples for org.apache.pdfbox.pdmodel.PDPageContentStream#transform()

public byte[] createPdf() throws IOException {
  try (PDDocument document = new PDDocument()) {
    PDPage page = new PDPage(PDRectangle.A4);
    page.setRotation(90);

    float pageWidth = page.getMediaBox().getWidth();
    float pageHeight = page.getMediaBox().getHeight();

    PDPageContentStream contentStream = new PDPageContentStream(document, page);

    PDImageXObject chartImage = JPEGFactory.createFromImage(document,
      createChart((int) pageHeight, (int) pageWidth));

    contentStream.transform(new Matrix(0, 1, -1, 0, pageWidth, 0));
    contentStream.drawImage(chartImage, 0, 0);
    contentStream.close();

    document.addPage(page);

    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    document.save(byteArrayOutputStream);
    return byteArrayOutputStream.toByteArray();
  }

}
 

/**
 * <a href="https://stackoverflow.com/questions/52054396/rotate-text-in-pdfbox-with-java">
 * Rotate text in pdfbox with java
 * </a>
 * <p>
 * This test shows how to show rotated text above a line.
 * </p>
 */
@Test
public void testRotatedTextOnLineForCedrickKapema() throws IOException {
    PDDocument doc = new PDDocument();
    PDPage page = new PDPage();
    doc.addPage(page);
    PDPageContentStream cos = new PDPageContentStream(doc, page);
    cos.transform(Matrix.getRotateInstance(-Math.PI / 6, 100, 650));
    cos.moveTo(0, 0);
    cos.lineTo(125, 0);
    cos.stroke();
    cos.beginText();
    String text = "0.72";
    cos.newLineAtOffset(50, 5);
    cos.setFont(PDType1Font.HELVETICA_BOLD, 12);
    cos.showText(text);
    cos.endText();
    cos.close();
    doc.save(new File(RESULT_FOLDER, "TextOnLine.pdf"));
    doc.close();
}
 

/**
 * <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
 * Rotate PDF around its center using PDFBox in java
 * </a>
 * <p>
 * This test shows how to rotate the page content around the center of its crop box.
 * </p>
 */
@Test
public void testRotateCenter() throws IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf")  )
    {
        PDDocument document = Loader.loadPDF(resource);
        PDPage page = document.getDocumentCatalog().getPages().get(0);
        PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false); 
        PDRectangle cropBox = page.getCropBox();
        float tx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
        float ty = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
        cs.transform(Matrix.getTranslateInstance(tx, ty));
        cs.transform(Matrix.getRotateInstance(Math.toRadians(45), 0, 0));
        cs.transform(Matrix.getTranslateInstance(-tx, -ty));
        cs.close();
        document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-center.pdf"));
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
 * Rotate PDF around its center using PDFBox in java
 * </a>
 * <p>
 * This test shows how to rotate the page content around the center of its crop box
 * and then crop it to make all previously visible content fit.
 * </p>
 */
@Test
public void testRotateCenterScale() throws IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf")  )
    {
        PDDocument document = Loader.loadPDF(resource);
        PDPage page = document.getDocumentCatalog().getPages().get(0);
        PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);

        Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
        PDRectangle cropBox = page.getCropBox();
        float tx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
        float ty = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;

        Rectangle rectangle = cropBox.transform(matrix).getBounds();
        float scale = Math.min(cropBox.getWidth() / (float)rectangle.getWidth(), cropBox.getHeight() / (float)rectangle.getHeight());

        cs.transform(Matrix.getTranslateInstance(tx, ty));
        cs.transform(matrix);
        cs.transform(Matrix.getScaleInstance(scale, scale));
        cs.transform(Matrix.getTranslateInstance(-tx, -ty));
        cs.close();
        document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-center-scale.pdf"));
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
 * Rotate PDF around its center using PDFBox in java
 * </a>
 * <p>
 * This test shows how to rotate the page content and then move its crop box and
 * media box accordingly to make it appear as if the content was rotated around
 * the center of the crop box.
 * </p>
 */
@Test
public void testRotateMoveBox() throws IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf")  )
    {
        PDDocument document = Loader.loadPDF(resource);
        PDPage page = document.getDocumentCatalog().getPages().get(0);
        PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
        Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
        cs.transform(matrix);
        cs.close();

        PDRectangle cropBox = page.getCropBox();
        float cx = (cropBox.getLowerLeftX() + cropBox.getUpperRightX()) / 2;
        float cy = (cropBox.getLowerLeftY() + cropBox.getUpperRightY()) / 2;
        Point2D.Float newC = matrix.transformPoint(cx, cy);
        float tx = (float)newC.getX() - cx;
        float ty = (float)newC.getY() - cy;
        page.setCropBox(new PDRectangle(cropBox.getLowerLeftX() + tx, cropBox.getLowerLeftY() + ty, cropBox.getWidth(), cropBox.getHeight()));
        PDRectangle mediaBox = page.getMediaBox();
        page.setMediaBox(new PDRectangle(mediaBox.getLowerLeftX() + tx, mediaBox.getLowerLeftY() + ty, mediaBox.getWidth(), mediaBox.getHeight()));

        document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-move-box.pdf"));
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
 * Rotate PDF around its center using PDFBox in java
 * </a>
 * <p>
 * This test shows how to rotate the page content and then set the crop
 * box and media box to the bounding rectangle of the rotated page area.
 * </p>
 */
@Test
public void testRotateExpandBox() throws IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf")  )
    {
        PDDocument document = Loader.loadPDF(resource);
        PDPage page = document.getDocumentCatalog().getPages().get(0);
        PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false);
        Matrix matrix = Matrix.getRotateInstance(Math.toRadians(45), 0, 0);
        cs.transform(matrix);
        cs.close();

        PDRectangle cropBox = page.getCropBox();
        Rectangle rectangle = cropBox.transform(matrix).getBounds();
        PDRectangle newBox = new PDRectangle((float)rectangle.getX(), (float)rectangle.getY(), (float)rectangle.getWidth(), (float)rectangle.getHeight());
        page.setCropBox(newBox);
        page.setMediaBox(newBox);

        document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-expand-box.pdf"));
    }
}
 

private void rotateSignature(PDPageContentStream cs, PDRectangle rectangle, SignatureFieldDimensionAndPosition dimensionAndPosition) throws IOException {
   	switch (dimensionAndPosition.getGlobalRotation()) {
		case ImageRotationUtils.ANGLE_90:
			// pdfbox rotates in the opposite way
	    	cs.transform(Matrix.getRotateInstance(Math.toRadians(ImageRotationUtils.ANGLE_270), 0, 0));
	    	cs.transform(Matrix.getTranslateInstance(-rectangle.getHeight(), 0));
			break;
		case ImageRotationUtils.ANGLE_180:
	    	cs.transform(Matrix.getRotateInstance(Math.toRadians(ImageRotationUtils.ANGLE_180), 0, 0));
	    	cs.transform(Matrix.getTranslateInstance(-rectangle.getWidth(), -rectangle.getHeight()));
			break;
		case ImageRotationUtils.ANGLE_270:
	    	cs.transform(Matrix.getRotateInstance(Math.toRadians(ImageRotationUtils.ANGLE_90), 0, 0));
	    	cs.transform(Matrix.getTranslateInstance(0, -rectangle.getWidth()));
			break;
		case ImageRotationUtils.ANGLE_360:
			// do nothing
			break;
		default:
               throw new IllegalStateException(ImageRotationUtils.SUPPORTED_ANGLES_ERROR_MESSAGE);
	}
}
 

/**
 * Places the given form over the existing content of the indicated page (like an overlay).
 * The form is enveloped in a marked content section to indicate that it's part of an
 * optional content group (OCG), here used as a layer. This optional group is returned and
 * can be enabled and disabled through methods on {@link PDOptionalContentProperties}.
 * <p>
 * You may want to call {@link #wrapInSaveRestore(PDPage) wrapInSaveRestore(PDPage)} before calling this method to make
 * sure that the graphics state is reset.
 *
 * @param targetPage the target page
 * @param form the form to place
 * @param transform the transformation matrix that controls the placement of your form. You'll
 * need this if your page has a crop box different than the media box, or if these have negative
 * coordinates, or if you want to scale or adjust your form.
 * @param layerName the name for the layer/OCG to produce
 * @return the optional content group that was generated for the form usage
 * @throws IOException if an I/O error occurs
 */
public PDOptionalContentGroup appendFormAsLayer(PDPage targetPage,
        PDFormXObject form, AffineTransform transform,
        String layerName) throws IOException
{
    PDDocumentCatalog catalog = targetDoc.getDocumentCatalog();
    PDOptionalContentProperties ocprops = catalog.getOCProperties();
    if (ocprops == null)
    {
        ocprops = new PDOptionalContentProperties();
        catalog.setOCProperties(ocprops);
    }
    if (ocprops.hasGroup(layerName))
    {
        throw new IllegalArgumentException("Optional group (layer) already exists: " + layerName);
    }

    PDRectangle cropBox = targetPage.getCropBox();
    if ((cropBox.getLowerLeftX() < 0 || cropBox.getLowerLeftY() < 0) && transform.isIdentity())
    {
        // PDFBOX-4044 
        LOG.warn("Negative cropBox " + cropBox + 
                 " and identity transform may make your form invisible");
    }

    PDOptionalContentGroup layer = new PDOptionalContentGroup(layerName);
    ocprops.addGroup(layer);

    PDPageContentStream contentStream = new PDPageContentStream(
            targetDoc, targetPage, AppendMode.APPEND, !DEBUG);
    contentStream.beginMarkedContent(COSName.OC, layer);
    contentStream.saveGraphicsState();
    contentStream.transform(new Matrix(transform));
    contentStream.drawForm(form);
    contentStream.restoreGraphicsState();
    contentStream.endMarkedContent();
    contentStream.close();

    return layer;
}
 

/**
 * <a href="https://stackoverflow.com/questions/49958604/draw-image-at-mid-position-using-pdfbox-java">
 * Draw image at mid position using pdfbox Java
 * </a>
 * <p>
 * This is the OP's original code. It mirrors the image.
 * This can be fixed as shown in {@link #testImageAppendNoMirror()}.
 * </p>
 */
@Test
public void testImageAppendLikeShanky() throws IOException {
    try (   InputStream resource = getClass().getResourceAsStream("/mkl/testarea/pdfbox2/sign/test.pdf");
            InputStream imageResource = getClass().getResourceAsStream("Willi-1.jpg")   )
    {
        PDDocument doc = Loader.loadPDF(resource);
        PDImageXObject pdImage = PDImageXObject.createFromByteArray(doc, ByteStreams.toByteArray(imageResource), "Willi");

        int w = pdImage.getWidth();
        int h = pdImage.getHeight();

        PDPage page = doc.getPage(0);
        PDPageContentStream contentStream = new PDPageContentStream(doc, page, PDPageContentStream.AppendMode.APPEND, true);

        float x_pos = page.getCropBox().getWidth();
        float y_pos = page.getCropBox().getHeight();

        float x_adjusted = ( x_pos - w ) / 2;
        float y_adjusted = ( y_pos - h ) / 2;

        Matrix mt = new Matrix(1f, 0f, 0f, -1f, page.getCropBox().getLowerLeftX(), page.getCropBox().getUpperRightY());
        contentStream.transform(mt);
        contentStream.drawImage(pdImage, x_adjusted, y_adjusted, w, h);
        contentStream.close();

        doc.save(new File(RESULT_FOLDER, "test-with-image-shanky.pdf"));
        doc.close();

    }
}
 

/**
 * @see #testJoinSmallAndBig()
 */
void join(PDDocument target, PDDocument topSource, PDDocument bottomSource) throws IOException {
    LayerUtility layerUtility = new LayerUtility(target);
    PDFormXObject topForm = layerUtility.importPageAsForm(topSource, 0);
    PDFormXObject bottomForm = layerUtility.importPageAsForm(bottomSource, 0);

    float height = topForm.getBBox().getHeight() + bottomForm.getBBox().getHeight();
    float width, topMargin, bottomMargin;
    if (topForm.getBBox().getWidth() > bottomForm.getBBox().getWidth()) {
        width = topForm.getBBox().getWidth();
        topMargin = 0;
        bottomMargin = (topForm.getBBox().getWidth() - bottomForm.getBBox().getWidth()) / 2;
    } else {
        width = bottomForm.getBBox().getWidth();
        topMargin = (bottomForm.getBBox().getWidth() - topForm.getBBox().getWidth()) / 2;
        bottomMargin = 0;
    }

    PDPage targetPage = new PDPage(new PDRectangle(width, height));
    target.addPage(targetPage);


    PDPageContentStream contentStream = new PDPageContentStream(target, targetPage);
    if (bottomMargin != 0)
        contentStream.transform(Matrix.getTranslateInstance(bottomMargin, 0));
    contentStream.drawForm(bottomForm);
    contentStream.transform(Matrix.getTranslateInstance(topMargin - bottomMargin, bottomForm.getBBox().getHeight()));
    contentStream.drawForm(topForm);
    contentStream.close();
}
 

/**
 * <a href="http://stackoverflow.com/questions/40611736/rotate-pdf-around-its-center-using-pdfbox-in-java">
 * Rotate PDF around its center using PDFBox in java
 * </a>
 * <p>
 * Indeed, using the code of the OP the image mostly is rotated out of the page area.
 * </p>
 */
@Test
public void testRotateLikeSagar() throws IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("IRJET_Copy_Right_form.pdf")  )
    {
        PDDocument document = Loader.loadPDF(resource);
        PDPage page = document.getDocumentCatalog().getPages().get(0);
        PDPageContentStream cs = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.PREPEND, false, false); 
        cs.transform(Matrix.getRotateInstance(Math.toRadians(45), 0, 0));
        cs.close();
        document.save(new File(RESULT_FOLDER, "IRJET_Copy_Right_form-rotated-like-sagar.pdf"));
    }
}
 

/**
 * Draws the given image with specified dimension and position
 * @param cs
 *		{@link PDPageContentStream} current stream
 * @param doc
 *		{@link PDDocument} to draw the picture on
 * @param dimensionAndPosition
 *		{@link SignatureFieldDimensionAndPosition} size and position to place the picture to
 * @param image
 *		{@link DSSDocument} image to draw
 * @throws IOException
 *		in case of error
 */
private void setImage(PDPageContentStream cs, PDDocument doc, SignatureFieldDimensionAndPosition dimensionAndPosition, 
		DSSDocument image) throws IOException {
	if (image != null) {
		try (InputStream is = image.openStream()) {
            cs.saveGraphicsState();
    		byte[] bytes = IOUtils.toByteArray(is);
    		PDImageXObject imageXObject = PDImageXObject.createFromByteArray(doc, bytes, image.getName());

    		// divide to scale factor, because PdfBox due to the matrix transformation also changes position parameters of the image
    		float xAxis = dimensionAndPosition.getImageX();
    		if (parameters.getTextParameters() != null)
    			xAxis *= dimensionAndPosition.getxDpiRatio();
    		float yAxis = dimensionAndPosition.getImageY();
    		if (parameters.getTextParameters() != null)
    			yAxis *= dimensionAndPosition.getyDpiRatio();
    		
    		float width = getWidth(dimensionAndPosition);
    		float height = getHeight(dimensionAndPosition);
    				
	        cs.drawImage(imageXObject, xAxis, yAxis, width, height);
			cs.transform(Matrix.getRotateInstance(((double) 360 - ImageRotationUtils.getRotation(parameters.getRotation())), width, height));
            
            cs.restoreGraphicsState();
		}
   	}
}
 

public static void transform(final PDPageContentStream contentStream,
    float a, float b, float c, float d, float e, float f)
    throws IOException {
contentStream.transform(new Matrix(a, b, c, d, e, f));
   }
 

public static void moveTextPosition(
    final PDPageContentStream contentStream, final float x,
    final float y) throws IOException {
contentStream.transform(new Matrix(1, 0, 0, 1, x, y));
   }
 

private byte[] stamp(
        final PDDocument onePageDoc,
        final List<Line> leftLines,
        final List<Line> rightLines) throws IOException {

    PDPage pdPage = onePageDoc.getPage(0);

    final float pageHeight = pdPage.getMediaBox().getHeight();

    final PDPageContentStream prependStream =
            new PDPageContentStream(onePageDoc, pdPage, PDPageContentStream.AppendMode.PREPEND, false);
    try {
        prependStream.transform(Matrix.getScaleInstance(SCALE_X, SCALE_Y));
        prependStream.transform(Matrix.getTranslateInstance(0f, pageHeight * (1 - SCALE_Y)));
    } finally {
        prependStream.close();
    }

    final PDPageContentStream appendStream =
            new PDPageContentStream(onePageDoc, pdPage, PDPageContentStream.AppendMode.APPEND, true, true);

    try {

        final int leftLineSize = leftLines.size();
        final int rightLineSize = rightLines.size();

        final float height = Math.max(leftLineSize, rightLineSize) * TEXT_LINE_HEIGHT + BOX_Y_PADDING;
        final float y = 36;

        float x = X_MARGIN_LEFT;
        float yLine = addLines(x, y, height, leftLines, appendStream);

        String hyperlink = leftLines.get(leftLineSize - 1).hyperlink;
        addHyperlink(x, yLine + TEXT_LINE_HEIGHT - 6, hyperlink, pdPage);

        x = X_MARGIN_RIGHT;
        addLines(x, y, height, rightLines, appendStream);

    } finally {
        appendStream.close();
    }

    return asBytes(onePageDoc);
}